What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Aircraft started takeoff to the west at Picabo Airport, Idaho. The private pilot in the left seat, who initiated the takeoff, thought that he was being instructed by the instructor pilot in the right seat. Pilot in the right seat claims he did not know that he was to act as flight instructor during this flight. No discussions between the two pilots about their responsibilities were conducted prior to the flight. During the takeoff roll the pilot in the left seat stated that the prop control may not have been fully forward as required for takeoff. The aircraft did not accelerate as required to attain adequate flying speed. Pilot in the right seat took the controls as the end of runway approached. The aircraft continued off the end of the runway, through a fence resulting in substantial damage. None of the occupants were injured in the accident.
As the FAA filed it
(-23) AIRCRAFT STARTED TAKEOFF TO THE WEST AT PICABO AIRPORT, IDAHO. THE PRIVATE PILOT IN THE LEFT SEAT, WHO INITIATED THE TAKEOFF, THOUGHT THAT HE WAS BEING INSTRUCTED BY THE INSTRUCTOR PILOT IN THE RIGHT SEAT. PILOT IN THE RIGHT SEAT CLAIMS HE DID NOT KNOW THAT HE WAS TO ACT AS FLIGHT INSTRUCTOR DURING THIS FLIGHT. NO DISCUSSIONS BETWEEN THE TWO PILOTS ABOUT THEIR RESPONSIBILITIES WERE CONDUCTED PRIOR TO THE FLIGHT. DURING THE TAKEOFF ROLL THE PILOT IN THE LEFT SEAT STATED THAT THE PROP CONTROL MAY NOT HAVE BEEN FULLY FORWARD AS REQUIRED FOR TAKEOFF. THE AIRCRAFT DID NOT ACCELERATE AS REQUIRED TO ATTAIN ADEQUATE FLYING SPEED. PILOT IN THE RIGHT SEAT TOOK THE CONTROLS AS THE END OF RUNWAY APPROACHED. THE AIRCRAFT CONTINUED OFF THE END OF THE RUNWAY, THROUGH A FENCE RESULTING IN SUBSTANTIAL DAMAGE. NONE OF THE OCCUPANTS WERE INJURED IN THE ACCIDENT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.